74 OVIDUCTS OF MARSUPIALS B FIG. 48.—Female urlno - genital apparatus of various Marsu- pials. A, Didelpkys dorsigera (young) ; B, Trichosurus ; C, JPhascolomys wombat. Bt Urinary bladder ; Cl, " cloaca " ; Fim, fimbriae ; ff, clitoris ; Jtf, kidney ; Odt Fallopian tube; Ot, aper- ture of Fallopian tube; Ov, ovary ; r» rectum ; Spt sep- tum dividing vagina; &ugr, •arino - genital sinus ; Ur, ureter ; Ui, uterus ; Utf, opening of the uterus into the median vagina (VyJH) ; Vff, lateral vagina ; Vtf9 its opening into the urino-genital sinus ; f (in B), point of approximation of uteri; 1* (in C) and *, rectal glands, (From Wiedersheirn's Anatomy,) extruded ova to.follow. This series of steps in the perfecting of the mode of safe extrusion of the ova is highly interesting.